Rosin-purifying apparatus.



R. N. PERLEE.

ROSIN PURIFYING APPARATUS.

APPLICATION FILED SEPT. 16, 1909,

0 F? M I My m m m I 4.. o 6 9 fw -por from the sti' RALPH NEVIUS PEBLEE, OF LONG ISLAND CITY, NEW YORK.

ROSIN-PURIFYING APPARATUS.

Specification of Letters Patent.

Patented June 14, 1910.

Application filed September 16, 1909. Serial No. 518,055. 4

To all whom it may concern: 1

Be it known that I, RALPH, N. PERLEE, a citizen of the United States, residing at Long Island City, in the county of Queens and State of New York, have invented certain new and useful Improvements in Rosin- Purifying Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as 'will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and improved rosin purifying apparatus and the ob ect of the invention 1s to separate the rosin from such impurities as sand, stone, splinters of wood, pine needles, etc., the principle depending upon the solubility of the rosin in alcohol and particularly in alcohol at a temperature just below the boiling point thereof. ,1

' A still further object of the inventionis the provision of novel means for filtering the alcohol diluted rosin and for causing the filtration thereof to take lace 0111 when the li uid in the dissolving ta has reache a predetermined level.

With tlie foregoing and other objects in view, the invention consists of certain novel features of construction, combination and arran ement of parts, as will be more fully descri d and artioularly pointed out in the ap ended c aims.

In t e accompanying drawings, Figure 1 is a diagrammatic view of the a paratus; Fig. 2 is a section through the issolving tank.

Referring more especially to the drawings, 1 represents a still of any suitable character which is arranged above a burner 2, by which the contents of the still are heated. Extending from the upper end of the still is a vapor .pipe 3, whlch terminates at its up r end in an acute angle elbow 4 communicating with the liquid pipe 5 and with the combined vapor and liquid inlet and outlet 6, leading to. the condenser 7. This condenser comprises a lurality of globe shaped reoe tacles 8 in wliich the va- 1 is condensed. Each globe 8 communicates with the succeedin globe by short pipe sections 9.

Mounted immediately below pipe 5 are two dissolving tanks 10 and 11, the former being connected intermediate the length of the fluid pipe by a valved connection 12 and the latter being connected at the end of the fluid pipe by a valved connec; tion 13. These tanks" comprise a suitable casing 14 which is closed by a cap 15 through which the connections 12 and 13 enter and a hand hole opening 16 through which access may be hadto the interior of the tank. The cap is held down upon the casing in any suitable manner, here shown as being secured with flange screws 17. The interior,

of the casing is divided into separate compartments 18 and 19, separated by a partition 20, composed of any suitable for-aminous supporting element and a filtering fab: lie of cotton batting or the like.

The lower end of each tank has leading from it a discharge pipe 21 which communicates with a siphon tube 22 and with a direct discharge tube 23. The siphon tube forms a shunt around the direct discharge tube and around a valve 24 therein which controls the direct discharge tube so that under normal conditions, the filtered liquid will pass around through the siphon tube and back into the still 1 by means of a pipe 25. This insures filtration of the solution only when the liquid in the tanks has.

reached a predetermined level. If it is desired to drain the tank directly, the valve 24 is opened and the liquid in the tank permitted to pass through the pipes 21, 23 and 25, directly to the still 1. The tank 11 is used only when the tank 10 is being refilled.

Connected directly to the lower portion of the still 1, is an outlet pipe 26 in which is located a suction ump 27 which draws the liquid from the st1ll 1 and forces it into the upper portion of the still 28. This latter str 1 is heated by a burner 29 and has a con.- denser .coil 30 arranged in the tank 31, which contains cold water, the tank having an inlet at 32 and an outlet at 33.

In operation, the tanks 10 and 11 are filled with rosin in a finely divided state, and alcoholdenatured). is placed within the still 1, su cient heat is then applied to boil the same and the vapor therefrom arises in the tube 3 to the condenser 7. The vapors enter the condenser through the pipes 6 and the condensed li uid flows out through the same pipe into t e liquid tube 5 and through the connection 12 (the connection 13 termined level, the pressure thereof causes it i and when the liquid has reached a prede- '7 to pass throu h the filterin fabric and around throug the siphon tu 22 into the the tank 10 has all been dissolved and treated as above described, the connection 12 is closed and the connection 13 opened so that the o eration may be practically continuous. uring the 0 when in which the tank 11 is employed, t e top 15 of the tank 10 is removed and the sediment resting upon the filtering elements removed.

I have not shown any opening in the still 1 for the admission of a fresh supply of alcohol, but it will be understood that an im proved type of opening may be emp oyed which will prevent the escape of the vapor While the burner is in o ration.

From the foregoing escription, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, roportion and the minor details of construction may be resorted to without departing from the prin ciple or sacrificing an of the advantages-of the invention, as de ned in the appended claims.

Having thus described my invention, what I claim 1s:

1. In a rosin puri ing apparatus, the combination with a sti of a condenser, a connection between the still and the condenser, a dissolving tank connected to the condenser, a filtering element arranged in the tank, a siphon connection between the tank and the still, and a direct connection between the tank and the still which shunts the siphon connection. 1

2. In a rosin purifying apparatus, the combination with a still, of a condenser, a connection between the still and the condenser, a pair of rosin dissolving tanks connected to the condenser to receive the liquid therefrom, means for independently controlling the connection from the tanks to the condenser, and independent siphon connections between the tanks and the still.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

RALPH NEVIUS PERLEE. Witnesses:

GEO. L. FENNER, GEORGE MARKS. 

